Step 2: Step 2: Open the D-Ball Motor

Take out these screws. Remove the switch. (If it comes out intact, great! You can use it in a hack! If it doesn't, oh well, you don't need it anymore...) Solder the wires that were previously connected to the switch to the audio wires.

Looks great! If you don't mind a little advice, I would recommend against stripping wires with your teeth. You can hurt your teeth badly if you do it (and you probably shouldn't put wire in your mouth anyway- it can contain certain harmful chemicals).